unity-greeter crashed with SIGSEGV in g_closure_invoke()

[Stéphane Graber]

This is happening when logging out of the live session on any current media.

See bug 943037 for the initial description but without the stack trace.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-greeter 0.2.4-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.307
Date: Tue Mar 13 17:26:02 2012
ExecutablePath: /usr/sbin/unity-greeter
LiveMediaBuild: Edubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120313)
ProcCmdline: /usr/sbin/unity-greeter
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/false
SegvAnalysis:
 Segfault happened at: 0x41ca56: cmpq $0x0,0x18(%rdx)
 PC (0x0041ca56) ok
 source "$0x0" ok
 destination "0x18(%rdx)" (0x00000018) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity-greeter
StacktraceTop:
 ?? ()
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-greeter crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #952557, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.